The last column of the periodic table contains the noble gases elements that do not easily form chemical bonds. Why don’t these gases
tend to form chemical bonds?

its is because the chemicals are very diffraction from each other so which makes it difficult to form a chemical bond.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.

you need to have a picture of the atom that way we can answer it